Diagon 1.0.139 Network Request GraphPlanar::Write heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Diagon 1.0.139. This affects the function GraphPlanar::Write of the component Network Request Handler. The manipulation results in heap-based overflow. This vulnerability is cataloged as CVE-2023-31194. The attack must originate from the local network. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Diagon 1.0.139. Affected is the function GraphPlanar::Write of the component Network Request Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An improper array index validation vulnerability exists in the GraphPlanar::Write functionality of Diagon v1.0.139. A specially crafted markdown file can lead to memory corruption. A victim would need to open a malicious file to trigger this vulnerability.

The weakness was shared 07/05/2023 as TALOS-2023-1745. The advisory is shared for download at talosintelligence.com. This vulnerability is traded as CVE-2023-31194 since 04/26/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/06/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Talos): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/26/2023 🔍
07/05/2023 +70 days 🔍
07/05/2023 +0 days 🔍
11/06/2025 +855 days 🔍

Sourcesinfo

Advisory: TALOS-2023-1745
Status: Not defined

CVE: CVE-2023-31194 (🔍)
GCVE (CVE): GCVE-0-2023-31194
GCVE (VulDB): GCVE-100-233004

Entryinfo

Created: 07/05/2023 19:37
Updated: 11/06/2025 01:37
Changes: 07/05/2023 19:37 (49), 07/23/2023 13:49 (11), 11/06/2025 01:37 (25)
Complete: 🔍
Cache ID: 216::103

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